Draw a diagram to show the `beta-pl e ated` sheet of protein structure.

Write a note on beta-pl e ated sheet.

With the helpo of diagrams show the Four level of protein structure.

State the characteristic of the beta-pl e ated sheet.

Answer the following questions: Two plane mirrors are kept such that the angle between, their reflection surfaces is 90^@ . In between, a small object is kept.Draw a diagram to show that three images are obtained in the mirrors.

Answer the following questions A plane mirror is kept at the bottom of a trough with water in it as show in the following figure . The ray of light emerging from a source at the point S outside the trough, reaches the point A on the surface of water. Draw a neat ray diagram to show the subsequent path of light and complete the ray diagram.

Draw suitable diagrams to show the electronic configuration of the atoms of the following elements: Hydrogen, helium, carbon, neon, sodium, chlorine.

Answer the following questions Draw a neat and labelled diagram to show the path of a ray of light in air and glass when the ray is incident obliquely on a glass slab. Show the Incident ray.

Answer the following questions Draw a neat and labelled diagram to show the path of a ray of light in air and glass when the ray is incident obliquely on a glass slab. Show the Angle of refraction

Answer the following questions Draw a neat and labelled diagram to show the path of a ray of light in air and glass when the ray is incident obliquely on a glass slab. Show the Emergent ray

Answer the following questions Draw a neat and labelled diagram to show the path of a ray of light in air and glass when the ray is incident obliquely on a glass slab. Show the Refracted ray